CN203202245U - Seawater resistant butterfly valve - Google Patents
Seawater resistant butterfly valve Download PDFInfo
- Publication number
- CN203202245U CN203202245U CN 201320192565 CN201320192565U CN203202245U CN 203202245 U CN203202245 U CN 203202245U CN 201320192565 CN201320192565 CN 201320192565 CN 201320192565 U CN201320192565 U CN 201320192565U CN 203202245 U CN203202245 U CN 203202245U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- butterfly
- shaft sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a seawater resistant butterfly valve, whichcomprises a valve body, a butterfly plate arranged in the valve body, an upper valve rod and a lower valve rod which are connected with the valve plate through pins, and an upper shaft sleeve and a lower shaft sleeve which arerespectivley positioned between the valve body and the upper valve rod and between the valve body and the lower valve rod. The seawater resistant butterfly valve is characterized in that an upper valve rod sealing ring is arranged between the upper valve rod and the upper shaft sleeve; a lower valve rod sealing ring is arrangedbetween the lower valve rod and the lower shaft sleeve; the butterfly plate is providedwith a compression ring; the butterfly plate is in threaded connection with the compression ring; a sealing ring is arranged in a gap formed by a valve seat sealing surface of the valve body, the butterfly plate and the compression ring; and the outersurfaces of the valve body, the butterfly plate and the compression ring which are contacted with a fluid medium are coated with anticorrosive coatings. According to the seawater resistant butterfly valve, the valve seat sealing surface is an overlaying duplex stainless steel valve seat sealing surface. The valve body, the butterfly plate and the compression ring are all made of carbon steel, the upper and lower shaft sleeves areboth made of duplex stainless steel and are in interference fit with a shaft hole of the valve body, and the upper and lower valve rods are made of the duplex stainless steel.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly the sea water resistance butterfly valve.
Background technique
Common seawater butterfly valve is for adapting to the corrosion of chlorion in the seawater, the accessory such as valve body, butterfly plate adopts the materials such as two phase stainless steel, titanium alloy and aluminum bronze to make usually, the seawater butterfly valve that adopts above material to make has defective separately, can not satisfy the needs of seawater operating mode fully.Such as the titanium alloy butterfly valve, although various aspects of performance is all very superior, titanium or titanium alloy smelting technology difficulty is large, and the approach that obtains titanium alloy casting is relatively more difficult, difficult processing, and price is very expensive; As the butterfly valve that adopts two phase stainless steel to make, can resist chloride ion corrosion, but the erosion resistance ability is bad, runner and sealing surface are subject to wash away and impaired, cause the butterfly valve seal face to leak.
The model utility content
The purpose of this utility model is to provide in order to solve above-mentioned the deficiencies in the prior art that a kind of cost is low, the sea water resistance butterfly valve of seawater corrosion resistance.
To achieve these goals, the sea water resistance butterfly valve that the utility model is designed, comprise valve body, be installed on the butterfly plate in the valve body, the upper valve rod and the lower valve rod that are connected by pin with valve plate, lay respectively at valve body and upper valve rod, Upper shaft sleeve between the lower valve rod and Lower shaft sleeve, it is characterized in that: be provided with the upper stem seal circle between described upper valve rod and the Upper shaft sleeve, be provided with the lower stem seal circle between lower valve rod and the Lower shaft sleeve, pressure ring is installed on the butterfly plate, butterfly plate and pressure ring are threaded connection, sealing surface of seat on the valve body, butterfly plate, be provided with seal ring in the gap that pressure ring forms, the valve body of the circulation that contacts with flowing medium, the outer surface of butterfly plate and pressure ring is coated with corrosion-resistant finishes.
Preferably, described sealing surface of seat is built-up welding two phase stainless steel sealing surface of seat.
Preferably, described valve body, butterfly plate and pressure ring are the carbon steel material making.
Preferably, described Upper shaft sleeve, Lower shaft sleeve be that two phase stainless steel is made and with the axis hole interference fit of valve body.
Preferably, described upper valve rod, lower valve rod are the two phase stainless steel making.
The sea water resistance butterfly valve that the utility model obtains, described sealing surface of seat adopt built-up welding two-phase stainless Steel material to make, and improve the sealing surface of seat Seawater durability; Described valve body, butterfly plate and pressure ring are that carbon steel material is made, and effectively reduce manufacture cost, with medium contact position spraying corrosion-resistant finishes, can increase valve anti-seawater corrosion ability; Described upper and lower axle sleeve is that the two-phase stainless Steel material is made, and adopt interference fit with the valve body axis hole, preventing that effectively seawater is to the corrosion at valve body axis hole position. described upper stem seal circle and lower stem seal circle are between upper and lower valve rod and the upper and lower axle sleeve of corresponding matching, can prevent that sand and impurity in the seawater from entering between upper and lower valve rod and the upper and lower axle sleeve, prevents valve rod and axle sleeve " interlock " phenomenon.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the partial enlarged drawing of I among Fig. 1.
Among the figure: Upper shaft sleeve 1, upper valve rod 2, upper stem seal circle 3, pin 4 butterfly plates 5, lower stem seal circle 6, lower valve rod 7, Lower shaft sleeve 8, valve body 9, end cap 10, sealing surface of seat 11, seal ring 12, pressure ring 13, corrosion-resistant finishes 21.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment:
Such as Fig. 1, shown in Figure 2, the sea water resistance butterfly valve that the present embodiment provides, comprise valve body 9, be installed on the butterfly plate 5 in the valve body, the upper valve rod 2 and the lower valve rod 7 that are connected by pin 4 with valve plate, lay respectively at valve body 9 and upper valve rod 2, Upper shaft sleeve 1 and Lower shaft sleeve 8 between the lower valve rod 7, valve body 9 is equipped with end cap 10 with lower valve rod 7 bottoms, described upper valve rod 2, lower valve rod 7 is made for the two-phase stainless Steel material, be provided with upper stem seal circle 3 between described upper valve rod 2 and the Upper shaft sleeve 1, be provided with lower stem seal circle 6 between lower valve rod 7 and the Lower shaft sleeve 8, pressure ring 13 is installed on the butterfly plate 5, butterfly plate 5 is threaded connection with pressure ring 13, sealing surface of seat 11 on the valve body, butterfly plate 5, be provided with seal ring 12 in the gap that pressure ring 13 forms, described valve body 9, butterfly plate 5 and pressure ring 13 are carbon steel material and make, effectively reduce manufacture cost, the valve body 9 that contacts and circulate with flowing medium, the outer surface of butterfly plate 5 and pressure ring 13 all is coated with certain thickness corrosion-resistant finishes 21, can increase valve anti-seawater corrosion ability.
Described sealing surface of seat 11 uses built-up welding two-phase stainless steel making to form, and can improve sealing surface of seat 11 Seawater durabilities.
Described Upper shaft sleeve 1, Lower shaft sleeve 8 adopts the two-phase stainless Steel materials to make, and adopts interference fit with the axis hole of valve body 9, prevents that effectively seawater is to the corrosion at valve body axis hole position;
Described upper stem seal circle 3 and lower stem seal circle 6 lay respectively between upper valve rod 2 and Upper shaft sleeve 1, lower valve rod 7 and the Lower shaft sleeve 8, can prevent that sand and impurity in the seawater from entering between valve rod and the upper and lower axle sleeve, prevent valve rod and upper and lower axle sleeve " interlock " phenomenon, prolong valve working life.
Claims (5)
1. sea water resistance butterfly valve, comprise valve body, be installed on the butterfly plate in the valve body, the upper valve rod and the lower valve rod that are connected by pin with valve plate, lay respectively at valve body and upper valve rod, Upper shaft sleeve between the lower valve rod and Lower shaft sleeve, it is characterized in that: be provided with the upper stem seal circle between described upper valve rod and the Upper shaft sleeve, be provided with the lower stem seal circle between lower valve rod and the Lower shaft sleeve, pressure ring is installed on the butterfly plate, butterfly plate and pressure ring are threaded connection, sealing surface of seat on the valve body, butterfly plate, be provided with seal ring in the gap that pressure ring forms, the valve body of the circulation that contacts with flowing medium, the outer surface of butterfly plate and pressure ring is coated with corrosion-resistant finishes.
2. sea water resistance butterfly valve according to claim 1, it is characterized in that: described sealing surface of seat is built-up welding two phase stainless steel sealing surface of seat.
3. sea water resistance butterfly valve according to claim 1 is characterized in that: described valve body, butterfly plate and pressure ring are carbon steel material and make.
4. sea water resistance butterfly valve according to claim 1 is characterized in that: described Upper shaft sleeve, Lower shaft sleeve be that two phase stainless steel is made and with the axis hole interference fit of valve body.
5. sea water resistance butterfly valve according to claim 1 is characterized in that: described upper valve rod, lower valve rod are two phase stainless steel and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192565 CN203202245U (en) | 2013-04-03 | 2013-04-03 | Seawater resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192565 CN203202245U (en) | 2013-04-03 | 2013-04-03 | Seawater resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202245U true CN203202245U (en) | 2013-09-18 |
Family
ID=49146354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320192565 Expired - Lifetime CN203202245U (en) | 2013-04-03 | 2013-04-03 | Seawater resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202245U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN105221762A (en) * | 2015-11-04 | 2016-01-06 | 江苏高中压阀门有限公司 | A kind of sea water resistance butterfly valve |
| CN107917220A (en) * | 2016-10-11 | 2018-04-17 | 江阴林格科技有限公司 | Corrosion-resistant plug valve |
| CN109441956A (en) * | 2018-12-28 | 2019-03-08 | 福建福清核电有限公司 | A kind of grid sewage-removing machine seawater corrosion resistance bearing |
-
2013
- 2013-04-03 CN CN 201320192565 patent/CN203202245U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN105221762A (en) * | 2015-11-04 | 2016-01-06 | 江苏高中压阀门有限公司 | A kind of sea water resistance butterfly valve |
| CN107917220A (en) * | 2016-10-11 | 2018-04-17 | 江阴林格科技有限公司 | Corrosion-resistant plug valve |
| CN109441956A (en) * | 2018-12-28 | 2019-03-08 | 福建福清核电有限公司 | A kind of grid sewage-removing machine seawater corrosion resistance bearing |
| CN109441956B (en) * | 2018-12-28 | 2021-09-17 | 福建福清核电有限公司 | Seawater corrosion resistant bearing of grid cleaner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUANDA INDUSTRIAL GROUP CO., LTD. Free format text: FORMER OWNER: XUANDA INDUSTRIAL GROUP ZHEJIANG NAISEN VALVE CO., LTD. Effective date: 20140122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325100 WENZHOU, ZHEJIANG PROVINCE TO: 325105 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140122 Address after: Dong'ou Industrial Park, Yongjia County, Wenzhou City, Zhejiang province 325105 Patentee after: XUANDA INDUSTRIAL GROUP Co.,Ltd. Address before: Dong'ou Industrial Zone Oubei town of Yongjia County, Wenzhou City, Zhejiang province 325100 Patentee before: XUANDA IND GROUP ZHEJIANG NAISEN VALVE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |